Search Tips:

Searching Normal Compounds

To search all records in the selected category, just press the
[search] button without any input.

Keyword search finds records based on case-insensitive, substring
matching algorithm. Combination of the following boolean operators are
available, but only one "!" (it means "not") is allowed per query.
Search options (including check boxes) function in the `AND'
condition.

operator

command

example

AND

use a comma

dog, cat

OR

use a vertical bar |

dog | cat

NOT

use an exclamation mark

! dog , cat

Numeric fields such as the number of carbon atoms, double bonds, or
chemical groups are self-explanatory.

operator

example

=

equals

1 = carbon

<

bigger than

1 < carbon

>

less than

3 > carbon

Searching Sugar-containing Compounds in Glycosphingolipid

For fatty acids, use abbreviation such as C18:0 or C22:1.
For hydroxy fatty acid and omega hydroxy fatty acid, use `h' and
`omega', respectively. For long chain bases, use d18:1 (dihydroxy) and
t18:0 (trihydroxy).

Branched structures are described with parenthesis ( ).
If multiple branches exist, describe all of them in the order of the number of linkage position (smaller to larger).

Anomer and linkage position may become unspecified by using "?".

Gal?-4Glcb

anomer unspecified

Galb-?Glcb

linkage position unspecified

Gal?-?Glcb

both unspecified

There are two options for the search (using radio button).

"non-reducing end" option searches the beginning of the sugar chain.

"reducing end" option searches the end of the sugar chain.

If unchecked, all positions are searched.

Note 1: Non-reducing end search will also find "core structure",
i.e., the structure generated by detaching fucose and neuraminic acid
from original sugar chain if any. For example, if you input the
structure "Galb-3GalNAcb-4Gal" and check "non-reducing end" you will
get Galb-3GalNAcb-4Gal-R and Fuca-2Galb-3GalNAcb-4Gal-R.

Note 2: If you input a structure including -Cer, you will get the
same result with "reducing end search".